GMMG Installed.
Supreme Member
iTrader: (1)
Joined: Mar 2004
Posts: 1,319
Likes: 1
From: Pittsburgh & Allentown PA
Car: 1992 Z28 (Heritage Edition)
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Originally posted by Quick6
Well here it is.. The video still has microphone problems but atleast its something.
http://members.***.net/ext24/GMMG.MPG
Well here it is.. The video still has microphone problems but atleast its something.
http://members.***.net/ext24/GMMG.MPG
Also, what needs to be done to have the GMMG fit a thirdgen? Does it bolt right up or is there some modification that needs to be done. I'm seriously considering purchasing this exhaust system in the spring, so these are some htings id like to know.
Thread Starter
Supreme Member
Joined: May 2002
Posts: 1,019
Likes: 0
From: Oklahoma
Car: 1991 Camaro Z28
Engine: L98 5.7 V8 TPI
Transmission: 700R4
Originally posted by a mack6
That clip is only 2 seconds long?! IS there any way you can get a clip thats longer (10-40 seconds)?
That clip is only 2 seconds long?! IS there any way you can get a clip thats longer (10-40 seconds)?
Moderator




Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Originally posted by Quick6
The clip is 12 seconds long. I also took one that is 35 seconds long, but the sound is even worst on it...
The clip is 12 seconds long. I also took one that is 35 seconds long, but the sound is even worst on it...
The sound might get a little choppy, but I can still get a feel for what it sounds like. Thank you for posting the clip, it is much appreciated.
Supreme Member
iTrader: (1)
Joined: Mar 2004
Posts: 1,319
Likes: 1
From: Pittsburgh & Allentown PA
Car: 1992 Z28 (Heritage Edition)
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Originally posted by Quick6
The clip is 12 seconds long. I also took one that is 35 seconds long, but the sound is even worst on it...
The clip is 12 seconds long. I also took one that is 35 seconds long, but the sound is even worst on it...
But could you answer my question about what modifications need to be done for it to fit on a third gen?
Moderator




Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Originally posted by a mack6
I dont know, everytime i click on that link it brings up WMP and the clip only lasts 2 seconds...even says that its 2 seconds..
I dont know, everytime i click on that link it brings up WMP and the clip only lasts 2 seconds...even says that its 2 seconds..
Try right clicking and hitting "save target as".
Thread Starter
Supreme Member
Joined: May 2002
Posts: 1,019
Likes: 0
From: Oklahoma
Car: 1991 Camaro Z28
Engine: L98 5.7 V8 TPI
Transmission: 700R4
Originally posted by a mack6
I dont know, everytime i click on that link it brings up WMP and the clip only lasts 2 seconds...even says that its 2 seconds..
But could you answer my question about what modifications need to be done for it to fit on a third gen?
I dont know, everytime i click on that link it brings up WMP and the clip only lasts 2 seconds...even says that its 2 seconds..
But could you answer my question about what modifications need to be done for it to fit on a third gen?
EDIT: I will post the other 30 sec. video if I can get it hosted somewhere. It is too big for my webspace.
Last edited by Quick6; Dec 2, 2005 at 08:19 PM.
Moderator




Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Originally posted by Quick6
I am not completely sure what the shop did to install the system. AFAIK the I-pipe does have to be cut for the system to fit.
EDIT: I will post the other 30 sec. video if I can get it hosted somewhere. It is too big for my webspace.
I am not completely sure what the shop did to install the system. AFAIK the I-pipe does have to be cut for the system to fit.
EDIT: I will post the other 30 sec. video if I can get it hosted somewhere. It is too big for my webspace.
http://www.yousendit.com/
The concern that I have is the case of it being TOO loud. My car is a daily driver. I have a 383 c.i. engine with SLP headers and I am not running a catalytic converter. I don't want my neighbors to complain when I come rolling in at 3:00 am. Does it give you just a normal 'muscle' sound during idle conditions and slow neighborhood driving? Or is it 'race car' from the moment you crank it till you shut it off?
Supreme Member
iTrader: (1)
Joined: Mar 2004
Posts: 1,319
Likes: 1
From: Pittsburgh & Allentown PA
Car: 1992 Z28 (Heritage Edition)
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Originally posted by fadetoblack
The concern that I have is the case of it being TOO loud. My car is a daily driver. I have a 383 c.i. engine with SLP headers and I am not running a catalytic converter. I don't want my neighbors to complain when I come rolling in at 3:00 am. Does it give you just a normal 'muscle' sound during idle conditions and slow neighborhood driving? Or is it 'race car' from the moment you crank it till you shut it off?
The concern that I have is the case of it being TOO loud. My car is a daily driver. I have a 383 c.i. engine with SLP headers and I am not running a catalytic converter. I don't want my neighbors to complain when I come rolling in at 3:00 am. Does it give you just a normal 'muscle' sound during idle conditions and slow neighborhood driving? Or is it 'race car' from the moment you crank it till you shut it off?
Member
Joined: Mar 2005
Posts: 441
Likes: 0
From: Alliston,Ontario
Car: 85' Z28
Engine: 383 roller
Transmission: 700r4
Axle/Gears: Ford 9" 3.70
Originally posted by Steve383
wow that is amazing, I want it...
I'm considering making it myself though, with those summit chambered mufflers...
wow that is amazing, I want it...
I'm considering making it myself though, with those summit chambered mufflers...
Senior Member
Joined: May 2005
Posts: 777
Likes: 1
From: Windsor Ontario Canada
Car: 89 jaguar xjs convertable
Engine: 89 L98 5.7 TPI
Transmission: 700R4
Axle/Gears: 3.23 dana 44
Any shop with decent fab abilities can make that system fit for you. The part that sucks is they probably won't use the whole int. pipe. They may have to use some of yours (or some of the 3" pipe for the 3rd gen) and the rear section of your kitwith some left over. Shouldn't be to tough though. If you want to drive to Windsor Ontario Canada (south Detroit) I'll fit it up there nicely for you!! Yes you can make your own system using the Summit mufflers. It will sound almost identical to the GMMG system.
Supreme Member
iTrader: (1)
Joined: Mar 2004
Posts: 1,319
Likes: 1
From: Pittsburgh & Allentown PA
Car: 1992 Z28 (Heritage Edition)
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 2.73 Posi
quick6, do you have any other pictures of that exhaust on your car. Maybe one from like an eye level perspectiove. I PMed you about that but you never got back to me...
Thread Starter
Supreme Member
Joined: May 2002
Posts: 1,019
Likes: 0
From: Oklahoma
Car: 1991 Camaro Z28
Engine: L98 5.7 V8 TPI
Transmission: 700R4
Hi, sorry for not getting back to you in a timely manner. I do not currently have any such pics, however I will take some for you tomorrow in the daylight.
Originally posted by fadetoblack
The concern that I have is the case of it being TOO loud. My car is a daily driver. I have a 383 c.i. engine with SLP headers and I am not running a catalytic converter. I don't want my neighbors to complain when I come rolling in at 3:00 am. Does it give you just a normal 'muscle' sound during idle conditions and slow neighborhood driving? Or is it 'race car' from the moment you crank it till you shut it off?
The concern that I have is the case of it being TOO loud. My car is a daily driver. I have a 383 c.i. engine with SLP headers and I am not running a catalytic converter. I don't want my neighbors to complain when I come rolling in at 3:00 am. Does it give you just a normal 'muscle' sound during idle conditions and slow neighborhood driving? Or is it 'race car' from the moment you crank it till you shut it off?
Originally posted by a mack6
I cannot answer your question with certainty, but i've heard pretty much all the sound clips of GMMG on LT1's and LS1's and it sounds pretty deep and low during low RPM driving. I don't know how it would sound with SLP headers and no cat, but i'm pretty sure you could find a soundclip with a similar setup on www.ls1sounds.com . Check it out.
I cannot answer your question with certainty, but i've heard pretty much all the sound clips of GMMG on LT1's and LS1's and it sounds pretty deep and low during low RPM driving. I don't know how it would sound with SLP headers and no cat, but i'm pretty sure you could find a soundclip with a similar setup on www.ls1sounds.com . Check it out.
I am still having trouble deciding whether or not to invest in the GMMG system. I have listened to a lot of the clips. I agree that that the sound is awesome. However, I can not tell if the volume would just be too loud for a daily driver. It would seriously suck ***** to drop that kind of money just to be tired of dealing with the noise after a couple of month's worth of driving back and forth to work. Does anyone have any new comments to make about it?
Senior Member
Joined: May 2005
Posts: 777
Likes: 1
From: Windsor Ontario Canada
Car: 89 jaguar xjs convertable
Engine: 89 L98 5.7 TPI
Transmission: 700R4
Axle/Gears: 3.23 dana 44
Sooner or later you gotta take the plunge, one way or the other. If its what you really want then go for it, or you will forever second guess yourself. If its to loud there are other areas closer to your headers that you can add another "sound deadener" ie Hi flo cat, resonator, muffler just to kill a little more of the sound. You could also add an "x" or "h" pipe up front to reduce some of the tone. You know you want it, quit sittin on the fence. Happy holidays to all.
Supreme Member
Joined: Oct 2002
Posts: 2,378
Likes: 0
From: Thornton colorado
Car: 91 Camaro RS
Engine: TBI
Transmission: 700r4
Wow, that sounds damn nice, i am looking into it myself since right now i have stock mans and y pipe with a catco cat 3" and no muffler and i'm putting headers and a y pipe on it, i'm not worried too much about volume as i like loud and dont drive it much but i need some backpressure to keep the ses light off, sounds bitching thouhg
Supreme Member
iTrader: (1)
Joined: Mar 2004
Posts: 1,319
Likes: 1
From: Pittsburgh & Allentown PA
Car: 1992 Z28 (Heritage Edition)
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Originally posted by Quick6
Hi, sorry for not getting back to you in a timely manner. I do not currently have any such pics, however I will take some for you tomorrow in the daylight.
Hi, sorry for not getting back to you in a timely manner. I do not currently have any such pics, however I will take some for you tomorrow in the daylight.
Thread Starter
Supreme Member
Joined: May 2002
Posts: 1,019
Likes: 0
From: Oklahoma
Car: 1991 Camaro Z28
Engine: L98 5.7 V8 TPI
Transmission: 700R4
Originally posted by a mack6
quick6, do you have any other pictures of that exhaust on your car. Maybe one from like an eye level perspectiove. I PMed you about that but you never got back to me...
quick6, do you have any other pictures of that exhaust on your car. Maybe one from like an eye level perspectiove. I PMed you about that but you never got back to me...
Supreme Member
iTrader: (1)
Joined: Mar 2004
Posts: 1,319
Likes: 1
From: Pittsburgh & Allentown PA
Car: 1992 Z28 (Heritage Edition)
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 2.73 Posi
Originally posted by Quick6
Senior Member
iTrader: (3)
Joined: Jan 2004
Posts: 684
Likes: 0
From: K.C. Mo.
Car: '89 GTA 9,000 MILES
Engine: 350
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Originally posted by kick Z tail out
The GMMG is one of the top 3 sweetest catbacks there is for the F-Body. It blows away the American Thunder by a long shot.
It doesn't drone in car (pretty amazing) and at idle just adds a deep tone to the exhaust, not an excessive amount of volume. With a load, it's very deep and powerful, and over 2500 you can hear the car coming from every direction. At WOT forget it, the car sounds like the gates of hell just opened.
At night when the city is quiet, you can hear a car with a GMMG at wide open throttle for a mile or two, literally. But volume isn't all these things are about, the tone and muscle car sound is what makes this thing so awesome.
If I can take a video in the next few days I'll try to host it somewhere... Of course that's if you guys don't mind hearing it on a LT1.
The GMMG is one of the top 3 sweetest catbacks there is for the F-Body. It blows away the American Thunder by a long shot.
It doesn't drone in car (pretty amazing) and at idle just adds a deep tone to the exhaust, not an excessive amount of volume. With a load, it's very deep and powerful, and over 2500 you can hear the car coming from every direction. At WOT forget it, the car sounds like the gates of hell just opened.
At night when the city is quiet, you can hear a car with a GMMG at wide open throttle for a mile or two, literally. But volume isn't all these things are about, the tone and muscle car sound is what makes this thing so awesome.
If I can take a video in the next few days I'll try to host it somewhere... Of course that's if you guys don't mind hearing it on a LT1.
or an IMCO (flowmaster copy for half the price) , a 70-100 intermediate pipe and in my case keep the factory tailpipes. You could have some made cheap. Maybe a 200 exhaust total.
I am not ripping this brand, don't know that much about it but lord that is extremely high, higher than an overpriced Borla catback and that is really saying something.
Supreme Member
iTrader: (1)
Joined: Sep 2000
Posts: 1,061
Likes: 1
From: St. Louis, MO
Car: '91 GTA
Engine: 402ci LS2
Transmission: faceplated T56
Axle/Gears: 9" w/ 4.11's
I think I'm gonna fab up my own true dual 2.5" mandrel bent system using chambered mufflers like those... it will go all the way out the back though
I'll post pics
Maybe a 2OTL true dual system! It should sound good on my H/C LS1
I'll post pics
Maybe a 2OTL true dual system! It should sound good on my H/C LS1
Junior Member
Joined: Nov 2005
Posts: 35
Likes: 0
From: Hemet, CA
Car: 1995 Camaro Z28 3.23
Engine: LT1
Transmission: 4L60E
I've revisited this thread because I have a new video clip of the GMMG to share... growling the run from 0-100.
Check out the nice little wiggle of the tail on the 1-2 shift.
Look at her go!
Video - Roll to 100; 95 Z28 A4 3.23, Toy Shop built 4L60E, 2200 stall, Moroso CAI, RK Sport headers, high flow cat, GMMG and Eibach Pro Kit
Crank it up
Check out the nice little wiggle of the tail on the 1-2 shift.
Look at her go!Video - Roll to 100; 95 Z28 A4 3.23, Toy Shop built 4L60E, 2200 stall, Moroso CAI, RK Sport headers, high flow cat, GMMG and Eibach Pro Kit
Last edited by kick Z tail out; Apr 19, 2006 at 07:16 AM.
Junior Member
Joined: Sep 2004
Posts: 75
Likes: 0
From: Marietta, GA.
Car: 1991 Camaro RS
Engine: 383 stroker
Transmission: T-5
Axle/Gears: 3:73 Eaton limited slip
If you guys want a sound clip.........I'll post one from our car......We have had the exhaust for at least two years.......i'LL post the first week of May....Car apart again for a little more motor work.
Thread
Thread Starter
Forum
Replies
Last Post
efiguy
Engine/Drivetrain/Suspension Parts for Sale
0
Sep 27, 2015 01:30 PM





